2nd Stage SCI Symbol Determination Using Modulation Order
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Solution Overview
Problem
In wireless communication systems, particularly in 5G NR, there is a challenge in determining the number of symbols for 2nd stage SCI transmission, where the modulation order of the 2nd stage SCI is not considered, leading to inefficiencies in resource allocation and potential errors in V2X communication scenarios.
Innovation Solution
A method where the user equipment (UE) in a wireless communication system transmits a 1st Sidelink Control Channel (SCI) on a physical sidelink control channel (PSCCH) and a 2nd SCI on a physical sidelink shared channel (PSSCH, with the modulation order of the 2nd stage SCI used to determine the number of symbols for its transmission, ensuring accurate resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the modulation order of 2nd stage SCI is not considered in determining transmission symbols, then the resource allocation process is simplified, but the accuracy of resource allocation deteriorates leading to potential errors in V2X communication
Solution Approach 1:
The patent changes the parameter consideration by explicitly incorporating the modulation order of 2nd stage SCI into the transmission symbol determination process. The determining unit is configured to determine the number of transmission symbols based on both the number of resource blocks and the modulation order, ensuring accurate resource allocation while maintaining communication reliability.
2Measurement precision
If the modulation order of 2nd stage SCI is considered in determining transmission symbols, then the accuracy of resource allocation is improved, but the complexity of the determination process increases
Solution Approach 1:
The patent segments the determination process into distinct functional units: a receiving unit that obtains configuration information, a determining unit that calculates transmission symbols based on resource blocks and modulation order, and a transmitting unit that executes the transmission. This segmentation organizes the complex process into manageable, modular components that improve accuracy while maintaining systematic complexity control.
Data Source
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Figure 3(a)~3(b)
AI summary
In one embodiment is an operating method of user equipment (UE) in a wireless communication system, comprising the steps of: transmitting a first sidelink control channel (SCI) on a physical sidelink control channel (PSCCH); and transmitting a second SCI on a physical sidelink shared channel (PSSCH), wherein the modulation order of a second stage SCI is used in determining the number of symbols for transmission of the second stage SCI.